Peapod-Type Nanocomposites through the In Situ Growth of Gold Nanoparticles within Preformed Hexaniobate Nanoscrolls

A facile in situ method to grow Au nanoparticles (NPs) in hexaniobate nanoscrolls is applied to the formation of plasmonic Au@hexaniobate and bifunctional plasmonic‐magnetic Au‐Fe3O4@hexaniobate nanopeapods (NPPs). Utilizing a solvothermal treatment, rigid multiwalled hexaniobate nanoscrolls and par...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2014-04, Vol.53 (18), p.4614-4617
Main Authors: Adireddy, Shiva, Carbo, Cecilia E., Rostamzadeh, Taha, Vargas, Jose M., Spinu, Leonard, Wiley, John B.
Format: Article
Language:English
Subjects:
Doppler effect
Formations
Gold
layered inorganics
magnetic nanochains
Nanocomposites
Nanoparticles
nanopeapods
Nanostructure
Peas
plasmonic nanochains
Plasmonics
Variability
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Summary:A facile in situ method to grow Au nanoparticles (NPs) in hexaniobate nanoscrolls is applied to the formation of plasmonic Au@hexaniobate and bifunctional plasmonic‐magnetic Au‐Fe3O4@hexaniobate nanopeapods (NPPs). Utilizing a solvothermal treatment, rigid multiwalled hexaniobate nanoscrolls and partially filled Fe3O4@hexaniobate NPPs were first fabricated. These nanostructures were then used as templates for the controlled in situ growth of Au NPs. The resulting peapod structures exhibited high filling fractions and long‐range uniformity. Optical measurements showed a progressive red shift in plasmonic behavior between Au NPs, Au NPPs, and Au‐Fe3O4 NPPs; magnetic studies found that the addition of gold in the Fe3O4@hexaniobate NPPs reduced interparticle coupling effects. The development of this approach allows for the routine bulk preparation of noble‐metal‐containing bifunctional nanopeapod materials. Like peas in a pod: A facile in situ method for Au nanoparticle (NP) growth in nanoscrolls is applied to the formation of plasmonic Au@hexaniobate and bifunctional plasmonic‐magnetic Au‐Fe3O4@hexaniobate nanopeapods (NPPs). Using a solvothermal treatment, rigid multiwalled hexaniobate nanoscrolls and partially filled Fe3O4@hexaniobate NPPs were formed and used as templates for the Au NPs.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201310834